Gas sensor



FIG. 1 is a perspective view of a gas sensor showing my new design;

FIG. 2 is a front view of the design shown in FIG. 1;

FIG. 3 is a back view of the design shown in FIG. 1;

FIG. 4 is a top view of the design shown in FIG. 1;

FIG. 5 is a bottom view of the design shown in FIG. 1;

FIG. 6 is a left side view of the design shown in FIG. 1; and,

FIG. 7 is a right side of the design shown in FIG. 1.

Certain features of the circuit board are shown in broken lines for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a gas sensor, as shown and described. 